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Briggs & Stratton Power Protect™ 20kW Aluminum Standby Generator (400A Split Service Disc.)
Model:
040677
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Features
Grade
Emergency
Style
Standby (Air Cooled)
Run Watts
20,000 Rated Watts
Voltage
120/240 Single-Phase
Fuel
LP/Natural Gas
Engine
Briggs and Stratton Vanguard

Briggs & Stratton Power Protect™ 20kW Aluminum Standby Generator (400A Split Service Disc.)
Product Video Disclaimer: "PED is not responsible for any variances from the product in this video and the item you purchase. Please review all product specs prior to purchase."
- Power Protect™ 20kW (LP) /20kW (NG) Air-Cooled Standby Generator System
- Industry's most powerful air-cooled generator
- 6-Year Limited Warranty
- Parts, labor and travel included for the entire term
- 400-Amp Service Entrance Auto Transfer Switch (71057) (NEMA 3R)
- A UL Listed solution for 2 x 200-Amp Service Breakers
- Easy install - one less switch, less wiring/time, fewer expenses
- Smaller Transfer Switch
- A cost effective, cleaner looking installation
- Symphony® II Power Management (Up To 8 High-Wattage Loads)
- Automatically manages & balances loads while preventing overload
- Uninterrupted, whole house power, with a smaller generator
- Runs on Natural Gas (NG) or Liquid Propane (LP)
- Simple field conversion for easier installations
- Super High Output, Commercial-Grade Vanguard® Engine
- CDI (Capacitive Discharge Ignition) coils for optimum starting and performance
- Full-pressure lubrication system w/ spin-on oil filter
- Briggs & Stratton Alternator - Less Than 5% THD
- Improved frequency (HZ) regulation for cleaner power
- Automatic Voltage Regulation (+/-1%)
- Helps prevent damaging voltage spikes
- Quiet Weekly Test
- Low idle mode w/ 15-second weekly test cycle
- Corrosion Resistant Aluminum Enclosure & Base
- Certified to withstand hurricane-force winds up to 175 mph
- Flexible Placement (Please Verify Local Building Codes)
- Tested against tough National Fire Protection Agency standards
- Can be placed as close as 18' from structure
- Toolless Panel Removal
- Designed for easier serviceability and maintenance
- Independent 3-Stage Battery Charger
- Provides optimized charge for longer battery life
- Assembled and Engineered In The USA
- From global and domestic parts
California residents see
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.
For more information go to: www.p65Warnings.ca.gov
Specifications
040677

General Information
Product Category
Generator - Standby
Overview
Product Category
Generator - Standby
Weight
435 Pounds
CARB Compliant
Made in USA
Yes
Consumer Warranty
6 Years
Product Style
Standby Generator
Product Length
46.5 Inches
Product Width
26.8 Inches
Product Height
28.4 Inches
UPC
011675406776
Product Specs
Voltage
120/240 Single-Phase
Frequency
60 Hertz
Rated Watts
20000 Watts
Fuel Type
LP/Natural Gas
NG Power Capacity
20000 Watts
LP Power Capacity
20000 Watts
NG Fuel Consumption @ 50% Load
187 ft³/hr
NG Fuel Consumption @ 100% Load
260 ft³/hr
LP Fuel Consumption @ 50% Load
2.3 gallons/hr
LP Fuel Consumption @ 100% Load
3.7 gallons/hr
Rated Amps
83.3 Amps
Decibel Rating @ 7m
Decibel Rating @ 7m
Sound levels are measured in decibels (dB). The lower the decibel rating, the less noise the product makes. As an example, a ticking watch is 20 dB while on the other end of the scale, a lawn mower is around 90 dB.
68
Hour Meter
Yes
Transfer Switch
Automatic (Included)
Transfer Switch Amperage
400-Amps
Battery
Not Included
Enclosure
Aluminum
Circuit Breaker Size
100 Amps
Mounting Pad
Steel (Included)
Transfer Switch Style
Service Disconnect
ATS Load Prioritizing
Sold Separately
ATS Load Shedding
Built-In
ATS Service Disconnect
Yes
Cooling System
Air Cooled
UL Listed
Yes
Grade Type
Emergency
Prime Power
No
Engine
Engine Brand
Briggs and Stratton Vanguard
Starting System
12v Auto Start
Consumer Engine Warranty
6 Years
Engine RPM
3600 RPM
Low Oil Alert/Shutdown
Yes
Reviews
(2)
Briggs & Stratton 040677 Reviews & Ratings
Running Like A Champ For Nearly 5 Years
By Chris in Virginia
Virginia
Review Posted 01/13/2023
I have had this unit for almost 5 years now. I bought it here and had my electrician install it. We haven't had any trouble with it at all. We just do an annual oil and air filter change and every other year or so I change the plugs. It just plain works without any drama. Highly recommended. All of the old reviews for this seem to have disappeared so I'm adding this new one.
Chris in Virginia Recommends This
Was this review helpful?
Rating Breakdown
5/5
5/5
5/5
5/5
Pros:
Easy To Use, Price, I'd Buy It Again
Cons:
None
Where Is Paper Work
By Susie A
Texas
Review Posted 07/01/2022
It arrive late. Looks good, but have yet to hook up. We did not receive an owners manual or warranty. Called and emailed requesting the items, but have had no reply. This is first communication. Cant really write a review yet, but would like to hear from you.
Was this review helpful?
Expert Response
Here's a link to the Owner's - Install Manual

Dale V.
Power Equipment Expert
Manufacturer Response
I'm sorry to hear these were missing. Unfortunately we don't have a direct email to contact, so I'm not quite certain who you emailed, but you can contact our customer support center at 800-743-4115 Monday through Friday, 8 AM to 5 PM Central time and we can email you the manuals this way. You can also download these manuals off of Briggs & Stratton's website by hovering over the "Owner Support" tab, select the option "Find Manual & Parts List, select the option for Home Standby Generator and enter in model 040677.

Rating Breakdown
1/5
1/5
1/5
1/5
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Manuals
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